// 端点捕捉
private static void GetPortPntCollection(List <IFeature> listFeats, IFeatureClass pFeatureClass, IProximityOperator pProximity, double dSearchDist)
{
IPointCollection pPntColTemp = new MultipointClass();
for (int i = 0; i < listFeats.Count; i++)
{
IFeature pFeature = listFeats[i];
//判断该Feature图层
if (pFeature.Class.ObjectClassID != pFeatureClass.ObjectClassID)
{
continue;
}
if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolyline || pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon)
{
double dScreenSearchDist = pProximity.ReturnDistance(pFeature.Shape);
if (dScreenSearchDist < 1.5 * dSearchDist)
{
IGeometryCollection pGeoCollection = pFeature.Shape as IGeometryCollection;
for (int j = 0; j < pGeoCollection.GeometryCount; j++)
{
IGeometry pGeom = pGeoCollection.get_Geometry(j);
IPointCollection pPntCol = pGeom as IPointCollection;
m_PointCollection.AddPointCollection(pPntCol);
pPntColTemp.AddPointCollection(pPntCol);
}
}
}
}
m_dicPointCollection.Add(pPntColTemp, "PortPnt");
}
private IPolygon FlatBuffer(IPolyline pLline1, double pBufferDis)
{
object o = System.Type.Missing;
//分别对输入的线平移两次（正方向和负方向）
IConstructCurve pCurve1 = new PolylineClass();
pCurve1.ConstructOffset(pLline1, pBufferDis, ref o, ref o);
IPointCollection pCol = pCurve1 as IPointCollection;
IConstructCurve pCurve2 = new PolylineClass();
pCurve2.ConstructOffset(pLline1, -1 * pBufferDis, ref o, ref o);
//把第二次平移的线的所有节点翻转
IPolyline pline2 = pCurve2 as IPolyline;
pline2.ReverseOrientation();
//把第二条的所有节点放到第一条线的IPointCollection里面
IPointCollection pCol2 = pline2 as IPointCollection;
pCol.AddPointCollection(pCol2);
//用面去初始化一个IPointCollection
IPointCollection pPointCol = new PolygonClass();
pPointCol.AddPointCollection(pCol);
//把IPointCollection转换为面
IPolygon pPolygon = pPointCol as IPolygon;
//简化节点次序
pPolygon.SimplifyPreserveFromTo();
return(pPolygon);
}
static void createWkbMultiLineString(byte[] wkb, ref int startIndex, BitConversion bitConversion, out IGeometry geometry)
{
geometry = new PolylineClass();
IPointCollection mp = (IPointCollection)geometry;
// Get the number of line strings.
UInt32 lineStringCnt;
getWkbUInt32(wkb, ref startIndex, bitConversion, out lineStringCnt);
UInt32 pointCnt;
double x, y;
object missing = Type.Missing;
// Loop through each LineString.
for (int i = 0; i < lineStringCnt; i++)
{
startIndex += 5; // Jump past useless header stuff.
getWkbUInt32(wkb, ref startIndex, bitConversion, out pointCnt);
IPointCollection tempPc = new MultipointClass();
// Loop through each point.
for (int j = 0; j < pointCnt; j++)
{
getWkbDouble(wkb, ref startIndex, bitConversion, out x);
getWkbDouble(wkb, ref startIndex, bitConversion, out y);
tempPc.AddPoint(createAoPoint(x, y), ref missing, ref missing);
}
mp.AddPointCollection(tempPc);
}
}
public void DrawAllVertex()
{
if (m_pMap.SelectionCount == 1)
{
IPolyline pPolyline;
IPolygon pPolygon;
IFeature pFeature;
IEnumFeature pEnumFeature = m_pMap.FeatureSelection as IEnumFeature;
if (pEnumFeature == null)
{
return;
}
pEnumFeature.Reset();
pFeature = pEnumFeature.Next();
switch (pFeature.Shape.GeometryType)
{
case esriGeometryType.esriGeometryPolyline:
m_pPointCol = new PolylineClass();
pPolyline = pFeature.Shape as IPolyline;
m_pPointCol.AddPointCollection(pPolyline as IPointCollection);
ShowAllVertex(m_pPointCol);
break;
case esriGeometryType.esriGeometryPolygon:
m_pPointCol = new PolygonClass();
pPolygon = pFeature.Shape as IPolygon;
m_pPointCol.AddPointCollection(pPolygon as IPointCollection);
ShowAllVertex(m_pPointCol);
break;
default: break;
}
}
}
/// <summary>
/// 得到Feature与 FeatureList所有的交点
/// </summary>
/// <param name="vNewFeature"></param>
/// <param name="vFeatureCol"></param>
/// <returns></returns>
private IPointCollection GetAllIntersect(IFeature OneOfFeature, List <IFeature> list_AllFeatures)
{
IPolyline tempLine = new PolylineClass();
IPointCollection pPointColl = tempLine as IPointCollection;
pPointColl.AddPointCollection(OneOfFeature.Shape as IPointCollection);
IPointCollection vItersectCol = new MultipointClass();
IMultipoint vIntersectPnt = new MultipointClass();
IFeature vFeature;
for (int i = 0; i < list_AllFeatures.Count; i++)
{
vFeature = list_AllFeatures[i];
if (vFeature != OneOfFeature)
{
vIntersectPnt = GetIntersection(vFeature.Shape, tempLine as IPolyline) as IMultipoint;
if (vIntersectPnt != null)
{
vItersectCol.AddPointCollection(vIntersectPnt as IPointCollection);
}
}
}
return(vItersectCol);
}
private static IPointCollection GetSketchIntersectionPointsWithOriginalGeometries(
[NotNull] IEnumerable <IGeometry> geometriesToReshape,
[NotNull] IPolyline highLevelReshapePath)
{
IPointCollection sketchOriginalIntersectionPoints = null;
foreach (IGeometry geometry in geometriesToReshape)
{
if (sketchOriginalIntersectionPoints == null)
{
sketchOriginalIntersectionPoints =
(IPointCollection)IntersectionUtils.GetIntersectionPoints(
highLevelReshapePath, geometry);
}
else
{
sketchOriginalIntersectionPoints.AddPointCollection(
(IPointCollection)IntersectionUtils.GetIntersectionPoints(
highLevelReshapePath, geometry));
}
}
return(sketchOriginalIntersectionPoints);
}